code-identifier

A stateless, valid verification code verification tool based on keygrip.

API

consturctor

• opts.interval time interval
• opts.max the max key count
• opts.app the name of application, for different app to generate code

const CodeIdentifier = require('code-identifier');
const identifier = new CodeIdentifier({
  interval: 51 * 1000,
  max: 10,
  app: 'my-test-app',
});

genCode

generate the code

• len the length of code
• prefix the prefix to generate code, such as track cookie, user account and so on. [optional]

// { code: '512567', hash: 'flplYRZqe145QQJOlObmW8uNNY8' }
const result1 = identifier.genCode();
 
// { code: '53684948', hash: 'xixBFHNqGw6YdkPRLrTFR4NkyVI' }
const result2 = identifier.genCode(8);
 
// { code: '414337', hash: 'mTwUjHLhx_IGJ5FYbRT-np3b2ho' }
const result3 = identifier.genCode(6, 'track cookie');

verify

verify the code

• code
• hash the hash of genCode
• prefix the same as genCode use

// true
const valid1 = identifier.verify('512567', 'flplYRZqe145QQJOlObmW8uNNY8');
 
// true
const valid2 = identifier.verify('414337', 'mTwUjHLhx_IGJ5FYbRT-np3b2ho', 'track cookie');

getCode

Use custom function for get code

identifier.getCode = (len) => crypto.randomBytes(len).toString('hex');
 
// { code: 'df19f3', hash: 'IfR9zTryXWkA_k93zF2hb0D0YHk' }
const result = identifier.genCode(3);